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Galaxy S7 wifi stopped working after installing Nougat, other Nougat-related issues

Hello everybody! Welcome to another #GalaxyS7 post that addresses 7 different problems some users have encountered at this time. We are looking forward to hearing from you again in our coming posts.

Below are the specific topics we’re covering for you today:

  1. Galaxy S7 won’t charge, charging erratically
  2. How to fix Galaxy S7 issues following Nougat update
  3. Galaxy S7 cuts out when playing music or video
  4. Galaxy S7 wifi stopped working after installing Nougat
  5. AT&T wifi calling on Galaxy S7 stopped working after installing Nougat
  6. How to recover files from a Galaxy S7 that won’t turn on
  7. Galaxy S7 getting weak wifi and bluetooth tethering signals

If you are looking for solutions to your own #Android issue, you can contact us by using the link provided at the bottom of this page, or you can install our free app from Google Play Store.

When describing your issue, please be as detailed as possible so we can easily pinpoint a relevant solution. If you can, kindly include the exact error messages you are getting to give us an idea where to start. If you have already tried some troubleshooting steps before emailing us, make sure to mention them so we can skip them in our answers.


Problem #1: Galaxy S7 won’t charge, charging erratically

I recently bought a new Belkin charging cable because my old one broke, but now whenever I plug it into my fast charging adapter, the phone won’t charge. It starts charging for a little while (maybe about a couple of minutes) and then it stops charging and I have to go back and unplug and replug all the wires back in, and then it repeats, and so on. Or sometimes depending on where I plug it in (because I’ve tried different outlets). it’ll charge up to a certain point and then stop. — Alessandra

Solution: Hi Alessandra. We suggest that you to use an official Samsung charger and cable first if you want to get to the bottom of the issue. One of the reasons why it’s always recommended to use manufacturer-supplied charging cable and charger is the fact that both items have been validated to work on a Samsung Galaxy phone like you S7. Using third party cables can cause compatibility problems which can, in turn manifest into problems like the one you’re experiencing. Of course, a bad charging cable and charger is only one of the possible causes of this problem but doing it right by using official cable and charger is a must.

Another possible cause of this problem is a damaged charging port. In many cases, a bent pin or a lint inside the port can prevent good contact with the charger so if you can thoroughly check the port with the aid of some type of magnification, that would be great. Otherwise, you are limited to simply cleaning it with compressed air (to hopefully blow away dirt that may be causing the malfunction). This is an overly simplistic way to diagnose a charging port as the damage may be something that you can’t see but we still recommend that you do it nevertheless.

You also want to do basic software troubleshooting of course. Although a lot of charging issues we encountered before are caused by bad hardware, some were also due to third party apps or software glitch. If you haven’t yet, make sure that you wipe the cache partition, observe the phone to safe mode, and do a factory reset (exact steps are provided below).

If nothing changes after doing the software troubleshooting and basic hardware checks, the problem must be something deeper and requires a thorough hardware diagnostic tests. In this case, we suggest that you send the phone in to Samsung, especially if it’s still in warranty.

Problem #2: How to fix Galaxy S7 issues following Nougat update

I did a update 7.0 Nougat. I have 8 issues now if I can get them all in here before your page keeps crashing:

 

  • battery power drain quickly
  • com.sec.epdg has stopped
  • Android system has stopped
  • process system isn’t responding
  • Beacon manager has stopped
  • Gear S. Plug-ins has stopped
  • Settings has stopped repeatedly
  • Wireless fast charger has never work

 

All but the last one are all issues started after the update. — Larry

Solution: Hi Larry. The usual dose of troubleshooting for problems following a system update includes the following:

  1. wiping the cache partition
  2. installation of app updates, and
  3. factory reset

If you haven’t done any of them yet, we recommend that you do them in this order.

Wipe the cache partition

The first one, wiping the cache partition, helps in ensuring that the old system cache is refreshed. Sometimes, system updates can corrupt the system cache, which in turn can lead to all sorts of problems. Problems due to an outdated cache is often fixed by deleting the current cache and replacing it with a new one.

To wipe the cache partition, follow these steps:

  1. Turn off your Samsung Galaxy S7.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  5. Using the Volume Down key, navigate through the options and highlight ‘wipe cache partition.’
  6. Once highlighted, you may press the Power key to select it.
  7. Now highlight the option ‘Yes’ using the Volume Down key and press the Power button to select it.
  8. Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  9. The phone will now reboot longer than usual.

Install app updates

This is an often overlooked troubleshooting step when one encounters problems after installing the latest system update. Many users often forget the fact that a system update does not update apps. Allowing apps to run in their old state with the most recent operating system can create code conflicts that can manifest in instability issues, freezing, slow performance, and even boot problems.

Another related issue is the presence of incompatible apps within a system. Updating to the latest Android version may leave one or some apps suddenly incompatible as their developers have not yet updated them, or don’t plan in making them compatible with the new OS version at all. Keep in mind that developing and supporting apps over time can time- and resource-consuming job. Not all developers have resources at their disposal to constantly improve and support their apps. If you tend to install apps without checking whether or not their developers have good track record can be problematic. Needless to say, it’s your responsibility to make sure that your apps are all compatible and updated.

Perform a factory reset

If wiping the cache partition and updating your apps won’t fix the issues, you should wipe the phone clean by doing a factory reset. As its name suggests, factory reset will return all software (operating system) settings to their defaults. If there’s a software glitch that causes all these issues, factory reset should fix it. Here’s how to do it:

  1. Turn off your Samsung Galaxy S7.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  5. Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
  6. Once highlighted, you may press the Power key to select it.
  7. Now highlight the option ‘Yes — delete all user data’ using the Volume Down key and press the Power button to select it.
  8. Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  9. The phone will now reboot longer than usual.

NOTE: Factory reset will delete all user data such as photos, videos, contacts, etc. so make sure that you create a backup first before doing it. If you have a computer, you can download and install Samsung Smart Switch to it.

Problem #3: Galaxy S7 cuts out when playing music or video

I’ve had 2 brand new Samsung S7 phones in the past 3 months that have had audio issues. They were not dropped or near any liquids. My first phone is currently mailed out back to the company for the speakerphone not working on phone calls and the replacement phone I received works fine with calling but now Pandora, Netflix, Music, and even my own videos I took with the phone cut out. I’m a new AT&T customer and I find this to be getting a little frustrating. — Brittany

Solution: Hi Brittany. Well, we don’t think there’s anything that we can do to help you either given how little (there’s nothing actually) information you’re providing in your problem description. There’s no way for us to know what’s happening in your device because you’re not giving us enough information about the issue in the first place. Telling us that your phone is cutting out is vague and does not point to something specific.

If you haven’t tried it yet, do a cache partition wipe (steps provided above) first and if that won’t work, you can observe how the phone works while it’s on safe mode.

Safe mode is not a solution in itself but it can help you determine if this problem is being caused by a third party app. Safe mode blocks third party apps and services so if the issue won’t occur, that’s proof that one of the installed apps is to blame. If you think the problem is due to a third party app, you must uninstall them individually to fix the issue. Make sure that you observe how the phone works after uninstalling one so you’ll know if it fixes the problem. Do this until the problem has been eliminated.

To boot your phone to safe mode, kindly do these steps:

  1. Turn your Galaxy S7 off.
  2. Press and hold the Power button.
  3. Once the ‘Samsung Galaxy S7’ logo appears, release the Power key and immediately press and hold the Volume Down button.
  4. Continue holding the button until the phone finishes rebooting.
  5. Once you see the text “Safe mode” at the bottom left corner of the screen, release the Volume Down button.

Problem #4: Galaxy S7 wifi stopped working after installing Nougat

I just installed the new Nougat version to my phone last night and it won’t let me connect to wifi. It’s off and when I toggle the switch to connect to wifi it’ll look for available wifi and it’ll show my home wifi but not connect and just turn off. I’ve tried doing this in safe mode, and clearing the cache. Just haven’t done the master clean the last step that’s recommended. Is there anything else I could try or is a fix coming soon for this problem? Thanks. — Melinda

Solution: Hi Melinda. The Galaxy S7 wifi function is made possible by a number of apps and services, most of them beyond your reach to interact with (hidden). If wiping the cache partition did not help fix the problem, the other potentially good workaround that you can try is by disconnecting your phone from your wifi network and connecting to it again. Make sure that use “Forget network” option to disconnect from the network.

If disconnecting and reconnecting won’t work, try to Force Stop WlantTest app under Applications. WlanTest app is a system app so you must first select “Show system apps” by tapping on the menu icon (located on the right side of the white search bar).

If force stopping WlanTest app won’t help, proceed with master reset.

Problem #5: AT&T wifi calling on Galaxy S7 stopped working after installing Nougat

I bought a Samsung GALAXY S7 through AT&T and the wifi-texting feature was working since the second to last update. Now, when I try to send a message using the wifi I have here at home it says, “searching for service” and the message fails to send. It used to work, so what has happened? I cannot receive messages either. However, when I do go into town where I have cell service the messages come through then. Please help! — Naomi

Solution: Hi Naomi. Sending and receiving text messages via wifi is called Wifi Calling. It works similarly to regular texting except that it uses wifi to contact AT&T’s servers to send and receive SMS instead of using the cellular network. If the usual dose of troubleshooting for this case like the ones mentioned above won’t work, you must contact AT&T so they can help you directly.

Problem #6: How to recover files from a Galaxy S7 that won’t turn on

I’ve seen your website and wanted to ask for some advice from you. My Galaxy S7 has recently completely shut down. It wouldn’t switch on at all in the morning after I left it charging all night last weekend. Having done a reset (which didn’t work, changed cables – nothing)  I finally left it with a Samsung repair store to have it assessed as it’s still under warranty.

They have left me a note today that the logic board is finished. They will repair it but of course all my stuff on the phone is gone. I wasn’t able to do a recent backup as I couldn’t even switch on the handset. Do you know if there is any way to restore the data that was on the handset? I have an SD card but I know everything won’t be saved on it.

Would you be able to let me know what the chances are of getting my data back after the board has been repaired? I can’t understand why Samsung makes these phones so shabby they can’t even go beyond their warranty date! Apparently there is no way to access my Samsung data either from a PC or laptop. Thanks so much and I hope to hear from you soon. — Lorien

Solution: Hi Lorien. If Samsung has determined that the motherboard is damaged or no longer working, there’s no way that you can recover your files. The phone’s internal storage device called Nand chip is soldered to the motherboard is protected by some form of both software encryption. The physical chip itself is also protected by a hardware mechanism that prevents anyone from simply removing it from its logic board so its contents can be accessed. If the motherboard is totally dead, there’s no way to recover whatever data you have stored in the Nand chip.

To prevent losing important files in the future, make it a habit of always creating a backup. This is the only way to safeguard irreplaceable digital stuff in today’s world. We know it can be quite a chore but if you’re serious about keeping memories or valuable files from being lost, creating a backup regularly is the only way to go.

Problem #7: Galaxy S7 getting weak wifi and bluetooth tethering signals

Hello. I am using a Samsung Galaxy S7 mobile. My mobile was going good. When i bought it, my mobile was catching good signal of all wifi nearby and bluetooth tethering strength was also good. But suddenly my mobile is not catching signals of wifi and also bluetooth tethering strength has become weak. My problem is that my mobile is not catching wifi signals until it come close to the modem otherwise it was catching good signals even i was far from modem and bluetooth is not connecting to other device until my device come near to it. I want to fix my problem. I reset my phone but all in vain. I hope you guys tell me the solution of my problem. Thank you.

Shahzaibfaisal1

Solution: Hi Shahzaibfaisal1. An issue like this can be due to a baseband version problem so we recommend that you install the latest system update if you haven’t done it yet. Baseband version (modem firmware) is the operating system of the phone’s modem and it also requires updates from time to time. Manufacturers of phone modems usually bundle updates for their products with system update released by phone manufacturers like Samsung. If you’re phone is running official software, installing a system update may fix the issue.

However, if you rooted your phone and you installed a custom ROM to it, there’s a chance that the baseband version may not be updated or fully compatible with the current ROM. Consider updating the baseband version if that’s the case. The exact steps to do this is beyond the scope of this post so try using Google on how to do it.

Assuming your phone runs an official Samsung software and has the latest software updates installed already, the problem is most probably due to a bad hardware like a bad antenna. Consider having the phone repaired or replaced.

 


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4 Comments

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  1. I have updated my tubo2 lollipop to nougat after updated my hotspot is not working plz give me a solution. Thanks

  2. Wow the clearing cache helped get my wifi and my Blu-tooth back. Thank you so much. Samsung Galaxy s6 active.

  3. Finally, step by step easy to understand instructions. I tried to downgrade my S6 from Nougat back to Marshmallow and kept getting the ‘ims’ message, just couldn’t work it out then applied your S7 fix, worked a treat, thanks very much.

  4. I downloaded the new software. Had a issue with new software, had com.sec.epdg has stopped. Called A&TT service tech support and did what you said in previous statement. But didn’t work. Tech support said to go to A&TT store, then if they can’t do anything about it, then need to go to Best-Buy to Samsung people who know or make Samsung.

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